wirybeaver commented on code in PR #15958:
URL: https://github.com/apache/pinot/pull/15958#discussion_r2140170305
##########
pinot-query-planner/src/main/java/org/apache/pinot/calcite/rel/rules/PinotRuleUtils.java:
##########
@@ -122,4 +135,129 @@ public static String extractFunctionName(RexCall
function) {
SqlKind funcSqlKind = function.getOperator().getKind();
return funcSqlKind == SqlKind.OTHER_FUNCTION ?
function.getOperator().getName() : funcSqlKind.name();
}
+
+ public static class WindowUtils {
+ // Supported window functions
+ // OTHER_FUNCTION supported are: BOOL_AND, BOOL_OR
+ private static final EnumSet<SqlKind> SUPPORTED_WINDOW_FUNCTION_KIND =
+ EnumSet.of(SqlKind.SUM, SqlKind.SUM0, SqlKind.MIN, SqlKind.MAX,
SqlKind.COUNT, SqlKind.ROW_NUMBER, SqlKind.RANK,
+ SqlKind.DENSE_RANK, SqlKind.NTILE, SqlKind.LAG, SqlKind.LEAD,
SqlKind.FIRST_VALUE, SqlKind.LAST_VALUE,
+ SqlKind.OTHER_FUNCTION);
+
+ public static void validateWindows(Window window) {
+ int numGroups = window.groups.size();
+ // For Phase 1 we only handle single window groups
+ Preconditions.checkState(numGroups == 1,
+ String.format("Currently only 1 window group is supported, query has
%d groups", numGroups));
+
+ // Validate that only supported window aggregation functions are present
+ Window.Group windowGroup = window.groups.get(0);
+ validateWindowAggCallsSupported(windowGroup);
+
+ // Validate the frame
+ validateWindowFrames(windowGroup);
+ }
+
+ /**
+ * Replaces the reference to literal arguments in the window group with
the actual literal values.
+ * NOTE: {@link Window} has a field called "constants" which contains the
literal values. If the input reference is
+ * beyond the window input size, it is a reference to the constants.
+ */
+ public static Window.Group updateLiteralArgumentsInWindowGroup(Window
window) {
Review Comment:
Could you add more comments about how does RexInputRef(x) find the element
in constant list with more details? That's what I get by using copilot.
<h3 style="box-sizing: border-box; margin-top: 24px; margin-bottom: 16px;
font-size: 1.25em; font-weight: 600; line-height: 1.25; color: rgb(31, 35, 40);
font-family: -apple-system, "system-ui", "Segoe UI",
"Noto Sans", Helvetica, Arial, sans-serif, "Apple Color
Emoji", "Segoe UI Emoji"; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal; letter-spacing:
normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none;
widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space:
normal; background-color: rgb(255, 255, 255); text-decoration-thickness:
initial; text-decoration-style: initial; text-decoration-color: initial;"><span
style="box-sizing: border-box;">1.<span> </span></span><strong
style="box-sizing: border-box; font-weight: 600;"><span style="box-sizing:
border-box;">Understanding<span> </span></span><span style="box-sizing:
border-box;">the<span> </span></span><spa
n style="box-sizing: border-box;">Inputs</span></strong></h3><p
style="box-sizing: border-box; margin-top: 0px; margin-bottom: 16px; color:
rgb(31, 35, 40); font-family: -apple-system, "system-ui", "Segoe
UI", "Noto Sans", Helvetica, Arial, sans-serif, "Apple
Color Emoji", "Segoe UI Emoji"; font-size: 14px; font-style:
normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight:
400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px;
text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width:
0px; white-space: normal; background-color: rgb(255, 255, 255);
text-decoration-thickness: initial; text-decoration-style: initial;
text-decoration-color: initial;"><span style="box-sizing:
border-box;">When<span> </span></span><span style="box-sizing:
border-box;">Calcite<span> </span></span><span style="box-sizing:
border-box;">constructs<span> </span></span><span style="box-sizing
: border-box;">a<span> </span></span><code node="[object Object]"
style="box-sizing: border-box; font-family: ui-monospace, SFMono-Regular,
"SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
font-size: 11.9px; padding: 0.2em 0.4em; margin: 0px; white-space:
break-spaces; background-color: rgba(129, 139, 152, 0.12); border-radius:
6px;"><span style="box-sizing: border-box;">Window</span></code><span>
</span><span style="box-sizing: border-box;">relational<span>
</span></span><span style="box-sizing: border-box;">node,<span>
</span></span><span style="box-sizing: border-box;">it<span>
</span></span><span style="box-sizing: border-box;">conceptually<span>
</span></span><span style="box-sizing: border-box;">sees<span>
</span></span><span style="box-sizing: border-box;">the<span>
</span></span><span style="box-sizing: border-box;">input<span>
</span></span><span style="box-sizing: border-box;">as:</span></p><ul
style="box-sizing: border-box; padding-le
ft: 2em; margin-top: 0px; margin-bottom: 16px; color: rgb(31, 35, 40);
font-family: -apple-system, "system-ui", "Segoe UI",
"Noto Sans", Helvetica, Arial, sans-serif, "Apple Color
Emoji", "Segoe UI Emoji"; font-size: 14px; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400;
letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px;
text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width:
0px; white-space: normal; background-color: rgb(255, 255, 255);
text-decoration-thickness: initial; text-decoration-style: initial;
text-decoration-color: initial;"><li style="box-sizing: border-box;"><span
style="box-sizing: border-box;">All<span> </span></span><span
style="box-sizing: border-box;">columns<span> </span></span><span
style="box-sizing: border-box;">from<span> </span></span><span
style="box-sizing: border-box;">the<span> </span></span><span style="box-
sizing: border-box;">input<span> </span></span><span style="box-sizing:
border-box;">relation<span> </span></span><span style="box-sizing:
border-box;">(e.g.,<span> </span></span><span style="box-sizing:
border-box;">your<span> </span></span><span style="box-sizing:
border-box;">table<span> </span></span><span style="box-sizing:
border-box;">columns)</span></li><li style="box-sizing: border-box; margin-top:
0.25em;"><span style="box-sizing: border-box;">Followed<span>
</span></span><span style="box-sizing: border-box;">by<span>
</span></span><span style="box-sizing: border-box;">any<span>
</span></span><span style="box-sizing: border-box;">literal<span>
</span></span><span style="box-sizing: border-box;">constants<span>
</span></span><span style="box-sizing: border-box;">needed<span>
</span></span><span style="box-sizing: border-box;">by<span>
</span></span><span style="box-sizing: border-box;">window<span>
</span></span><span style="box-sizing: border-box;">functions<s
pan> </span></span><span style="box-sizing: border-box;">(these<span>
</span></span><span style="box-sizing: border-box;">are<span>
</span></span><span style="box-sizing: border-box;">placed<span>
</span></span><span style="box-sizing: border-box;">in<span>
</span></span><span style="box-sizing: border-box;">the<span>
</span></span><code node="[object Object]" style="box-sizing: border-box;
font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo,
Consolas, "Liberation Mono", monospace; font-size: 11.9px; padding:
0.2em 0.4em; margin: 0px; white-space: break-spaces; background-color:
rgba(129, 139, 152, 0.12); border-radius: 6px;"><span style="box-sizing:
border-box;">constants</span></code><span> </span><span style="box-sizing:
border-box;">list<span> </span></span><span style="box-sizing:
border-box;">in<span> </span></span><span style="box-sizing:
border-box;">the<span> </span></span><span style="box-sizing:
border-box;">Window<span> </span></spa
n><span style="box-sizing: border-box;">node)</span></li></ul><p
style="box-sizing: border-box; margin-top: 0px; margin-bottom: 16px; color:
rgb(31, 35, 40); font-family: -apple-system, "system-ui", "Segoe
UI", "Noto Sans", Helvetica, Arial, sans-serif, "Apple
Color Emoji", "Segoe UI Emoji"; font-size: 14px; font-style:
normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight:
400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px;
text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width:
0px; white-space: normal; background-color: rgb(255, 255, 255);
text-decoration-thickness: initial; text-decoration-style: initial;
text-decoration-color: initial;"><span style="box-sizing:
border-box;">So,<span> </span></span><span style="box-sizing:
border-box;">if<span> </span></span><span style="box-sizing:
border-box;">your<span> </span></span><span style="box-sizing: border-bo
x;">input<span> </span></span><span style="box-sizing: border-box;">row<span>
</span></span><span style="box-sizing: border-box;">has<span>
</span></span><span style="box-sizing: border-box;">N<span> </span></span><span
style="box-sizing: border-box;">columns,<span> </span></span><span
style="box-sizing: border-box;">and<span> </span></span><span
style="box-sizing: border-box;">your<span> </span></span><span
style="box-sizing: border-box;">window<span> </span></span><span
style="box-sizing: border-box;">function<span> </span></span><span
style="box-sizing: border-box;">needs<span> </span></span><span
style="box-sizing: border-box;">K<span> </span></span><span style="box-sizing:
border-box;">constants,<span> </span></span><span style="box-sizing:
border-box;">the<span> </span></span><span style="box-sizing:
border-box;">total<span> </span></span><span style="box-sizing:
border-box;">"input"<span> </span></span><span style="box-sizing:
border-box;">to<span> </span></sp
an><span style="box-sizing: border-box;">the<span> </span></span><span
style="box-sizing: border-box;">Window<span> </span></span><span
style="box-sizing: border-box;">node<span> </span></span><span
style="box-sizing: border-box;">is<span> </span></span><span style="box-sizing:
border-box;">N<span> </span></span><span style="box-sizing:
border-box;">+<span> </span></span><span style="box-sizing:
border-box;">K.</span></p><hr style="box-sizing: border-box; height: 0.25em;
overflow: hidden; margin: 24px 0px; background: rgb(209, 217, 224); border:
0px; padding: 0px; color: rgb(31, 35, 40); font-family: -apple-system,
"system-ui", "Segoe UI", "Noto Sans", Helvetica,
Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
font-size: 14px; font-style: normal; font-variant-ligatures: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans:
2; text-align: start; text-indent: 0px; text-transform: none; wi
dows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space:
normal; text-decoration-thickness: initial; text-decoration-style: initial;
text-decoration-color: initial;"><h3 style="box-sizing: border-box; margin-top:
24px; margin-bottom: 16px; font-size: 1.25em; font-weight: 600; line-height:
1.25; color: rgb(31, 35, 40); font-family: -apple-system,
"system-ui", "Segoe UI", "Noto Sans", Helvetica,
Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal;
letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px;
text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width:
0px; white-space: normal; background-color: rgb(255, 255, 255);
text-decoration-thickness: initial; text-decoration-style: initial;
text-decoration-color: initial;"><span style="box-sizing: border-box;">2.<span>
</span></span><strong style="box
-sizing: border-box; font-weight: 600;"><span style="box-sizing:
border-box;">How<span> </span></span><span style="box-sizing:
border-box;">RexInputRef<span> </span></span><span style="box-sizing:
border-box;">Works<span> </span></span><span style="box-sizing:
border-box;">in<span> </span></span><span style="box-sizing:
border-box;">This<span> </span></span><span style="box-sizing:
border-box;">Context</span></strong></h3><ul style="box-sizing: border-box;
padding-left: 2em; margin-top: 0px; margin-bottom: 16px; color: rgb(31, 35,
40); font-family: -apple-system, "system-ui", "Segoe UI",
"Noto Sans", Helvetica, Arial, sans-serif, "Apple Color
Emoji", "Segoe UI Emoji"; font-size: 14px; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400;
letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px;
text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width:
0px; white-space: normal; background-color: rgb(255, 255, 255);
text-decoration-thickness: initial; text-decoration-style: initial;
text-decoration-color: initial;"><li style="box-sizing: border-box;"><code
node="[object Object]" style="box-sizing: border-box; font-family:
ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
"Liberation Mono", monospace; font-size: 11.9px; padding: 0.2em
0.4em; margin: 0px; white-space: break-spaces; background-color: rgba(129, 139,
152, 0.12); border-radius: 6px;"><span style="box-sizing:
border-box;">RexInputRef(i)</span></code><span> </span><span style="box-sizing:
border-box;">refers<span> </span></span><span style="box-sizing:
border-box;">to<span> </span></span><span style="box-sizing:
border-box;">the<span> </span></span><span style="box-sizing:
border-box;">i-th<span> </span></span><span style="box-sizing:
border-box;">field<span> </span></span><span style="box-sizing:
border-box;">in<span> </span></span><spa
n style="box-sizing: border-box;">the<span> </span></span><span
style="box-sizing: border-box;">Window<span> </span></span><span
style="box-sizing: border-box;">node's<span> </span></span><span
style="box-sizing: border-box;">input.</span></li><li style="box-sizing:
border-box; margin-top: 0.25em;"><span style="box-sizing: border-box;">If<span>
</span></span><code node="[object Object]" style="box-sizing: border-box;
font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo,
Consolas, "Liberation Mono", monospace; font-size: 11.9px; padding:
0.2em 0.4em; margin: 0px; white-space: break-spaces; background-color:
rgba(129, 139, 152, 0.12); border-radius: 6px;"><span style="box-sizing:
border-box;">i </span><span style="box-sizing: border-box;">< </span><span
style="box-sizing: border-box;">N</span></code><span style="box-sizing:
border-box;">,<span> </span></span><span style="box-sizing:
border-box;">it<span> </span></span><span style="box-sizing: border
-box;">points<span> </span></span><span style="box-sizing:
border-box;">to<span> </span></span><span style="box-sizing:
border-box;">the<span> </span></span><span style="box-sizing:
border-box;">i-th<span> </span></span><span style="box-sizing:
border-box;">field<span> </span></span><span style="box-sizing:
border-box;">of<span> </span></span><span style="box-sizing:
border-box;">the<span> </span></span><span style="box-sizing:
border-box;">original<span> </span></span><span style="box-sizing:
border-box;">input<span> </span></span><span style="box-sizing:
border-box;">row<span> </span></span><span style="box-sizing:
border-box;">(e.g.,<span> </span></span><span style="box-sizing:
border-box;">a<span> </span></span><span style="box-sizing:
border-box;">table<span> </span></span><span style="box-sizing:
border-box;">column).</span></li><li style="box-sizing: border-box; margin-top:
0.25em;"><span style="box-sizing: border-box;">If<span> </span></span><code
node="[object
Object]" style="box-sizing: border-box; font-family: ui-monospace,
SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation
Mono", monospace; font-size: 11.9px; padding: 0.2em 0.4em; margin: 0px;
white-space: break-spaces; background-color: rgba(129, 139, 152, 0.12);
border-radius: 6px;"><span style="box-sizing: border-box;">i </span><span
style="box-sizing: border-box;">>= </span><span style="box-sizing:
border-box;">N</span></code><span style="box-sizing: border-box;">,<span>
</span></span><span style="box-sizing: border-box;">it<span>
</span></span><span style="box-sizing: border-box;">points<span>
</span></span><span style="box-sizing: border-box;">to<span>
</span></span><span style="box-sizing: border-box;">the<span>
</span></span><span style="box-sizing: border-box;">(i<span>
</span></span><span style="box-sizing: border-box;">-<span> </span></span><span
style="box-sizing: border-box;">N)-th<span> </span></span><span
style="box-sizing: border-box
;">entry<span> </span></span><span style="box-sizing: border-box;">in<span>
</span></span><span style="box-sizing: border-box;">the<span>
</span></span><code node="[object Object]" style="box-sizing: border-box;
font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo,
Consolas, "Liberation Mono", monospace; font-size: 11.9px; padding:
0.2em 0.4em; margin: 0px; white-space: break-spaces; background-color:
rgba(129, 139, 152, 0.12); border-radius: 6px;"><span style="box-sizing:
border-box;">constants</span></code><span> </span><span style="box-sizing:
border-box;">list.</span></li></ul><p style="box-sizing: border-box;
margin-top: 0px; margin-bottom: 16px; color: rgb(31, 35, 40); font-family:
-apple-system, "system-ui", "Segoe UI", "Noto
Sans", Helvetica, Arial, sans-serif, "Apple Color Emoji",
"Segoe UI Emoji"; font-size: 14px; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal; f
ont-weight: 400; letter-spacing: normal; orphans: 2; text-align: start;
text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px;
-webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255,
255, 255); text-decoration-thickness: initial; text-decoration-style: initial;
text-decoration-color: initial;"><strong style="box-sizing: border-box;
font-weight: 600;"><span style="box-sizing:
border-box;">Example:</span></strong></p><p style="box-sizing: border-box;
margin-top: 0px; margin-bottom: 16px; color: rgb(31, 35, 40); font-family:
-apple-system, "system-ui", "Segoe UI", "Noto
Sans", Helvetica, Arial, sans-serif, "Apple Color Emoji",
"Segoe UI Emoji"; font-size: 14px; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400;
letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px;
text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke
-width: 0px; white-space: normal; background-color: rgb(255, 255, 255);
text-decoration-thickness: initial; text-decoration-style: initial;
text-decoration-color: initial;"><span style="box-sizing:
border-box;">Suppose<span> </span></span><span style="box-sizing:
border-box;">your<span> </span></span><span style="box-sizing:
border-box;">table<span> </span></span><span style="box-sizing:
border-box;">has<span> </span></span><span style="box-sizing:
border-box;">2<span> </span></span><span style="box-sizing:
border-box;">columns:<span> </span></span><code node="[object Object]"
style="box-sizing: border-box; font-family: ui-monospace, SFMono-Regular,
"SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
font-size: 11.9px; padding: 0.2em 0.4em; margin: 0px; white-space:
break-spaces; background-color: rgba(129, 139, 152, 0.12); border-radius:
6px;"><span style="box-sizing: border-box;">employee_id</span></code><span
style="box-sizing: border-box;">,<span>
</span></span><code node="[object Object]" style="box-sizing: border-box;
font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo,
Consolas, "Liberation Mono", monospace; font-size: 11.9px; padding:
0.2em 0.4em; margin: 0px; white-space: break-spaces; background-color:
rgba(129, 139, 152, 0.12); border-radius: 6px;"><span style="box-sizing:
border-box;">salary</span></code><span style="box-sizing:
border-box;">.</span><br style="box-sizing: border-box;"><span
style="box-sizing: border-box;">Suppose<span> </span></span><span
style="box-sizing: border-box;">your<span> </span></span><span
style="box-sizing: border-box;">window<span> </span></span><span
style="box-sizing: border-box;">function<span> </span></span><span
style="box-sizing: border-box;">is:</span></p><figure
class="CodeBlock-module__container--BRsgk CodeBlock-module__assistive--vRZZ9"
aria-labelledby=":r16e:" style="box-sizing: border-box; display: block; margin:
0px 0px 16px; --header-height:
3rem; color: rgb(31, 35, 40); font-family: -apple-system,
"system-ui", "Segoe UI", "Noto Sans", Helvetica,
Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
font-size: 14px; font-style: normal; font-variant-ligatures: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans:
2; text-align: start; text-indent: 0px; text-transform: none; widows: 2;
word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal;
background-color: rgb(255, 255, 255); text-decoration-thickness: initial;
text-decoration-style: initial; text-decoration-color: initial;"><div
class="CodeBlock-module__header--RMUQr" style="box-sizing: border-box;
align-items: center; background-color: rgb(246, 248, 250); border-color:
rgba(209, 217, 224, 0.7); border-style: solid; border-width: 1px; border-image:
none 100% / 1 / 0 stretch; border-radius: 12px 12px 0px 0px; color: rgb(89, 99,
110); display: flex; gap: 4px; height: 48
px; padding-left: 16px; padding-right: 40px;"><span
class="LanguageDot-module__languageDot--h8s9C" style="box-sizing: border-box;
background-color: rgb(227, 140, 0); border-color: rgba(31, 35, 40, 0.15);
border-style: solid; border-width: 1px; border-image: none 100% / 1 / 0
stretch; border-radius: 9999px; display: inline-block; height: 10px; width:
10px;"></span><span id=":r16e:" class="CodeBlock-module__languageName--ZLWCa"
style="box-sizing: border-box; flex-grow: 1; font-size: 14px; margin-left:
4px;">SQL</span><button data-component="IconButton" type="button"
class="prc-Button-ButtonBase-c50BI prc-Button-IconButton-szpyj"
data-loading="false" data-no-visuals="true" data-size="medium"
data-variant="invisible" aria-describedby=":r16g:-loading-announcement"
aria-labelledby=":r16f:" style="box-sizing: border-box; font-style: inherit;
font-variant: inherit; font-weight: 500; font-stretch: inherit; font-size:
14px; line-height: inherit; font-family: inherit; font-optical-sizing: inhe
rit; font-size-adjust: inherit; font-kerning: inherit; font-feature-settings:
inherit; font-variation-settings: inherit; margin: 0px; overflow: visible;
text-transform: none; appearance: none; cursor: pointer; border-radius: 6px;
align-items: center; background-color: initial; border-style: solid;
border-width: 1px; border-image: none 100% / 1 / 0 stretch; border-color:
rgba(0, 0, 0, 0); color: rgb(89, 99, 110); display: inline-grid; gap: 8px;
height: 32px; place-content: center; min-width: unset; padding: unset;
text-align: center; text-decoration: none; transition: color 80ms
cubic-bezier(0.65, 0, 0.35, 1), fill, background-color, border-color;
user-select: none; flex-shrink: 0; width: 32px; box-shadow: none;"><svg
xmlns="http://www.w3.org/2000/svg"; width="16" height="16" fill="none"
viewBox="0 0 16 16" aria-hidden="true"><path stroke="currentColor"
stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M1 13h3M1
3h14"></path><path fill="currentColor" fill-rule="even
odd" d="M1 7.25a.75.75 0 0 0 0 1.5h11.5a1.75 1.75 0 1 1 0
3.5H9.536v-.464a.679.679 0 0 0-1.086-.543l-1.619 1.214a.68.68 0 0 0 0
1.086l1.619 1.214a.679.679 0 0 0 1.086-.543v-.464H12.5a3.25 3.25 0 0 0 0-6.5z"
clip-rule="evenodd"></path></svg></button></div><div
class="CodeBlock-module__copyContainer--HAOPj" style="box-sizing: border-box;
position: sticky; top: 48px;"><div class="CodeBlock-module__copyContent--RfUYZ"
style="box-sizing: border-box; right: 8px; align-items: center; bottom: 0px;
display: flex; height: 48px; position: absolute;"><button
data-component="IconButton" type="button" class="prc-Button-ButtonBase-c50BI
CodeBlock-module__copyButton--zcOKE prc-Button-IconButton-szpyj"
data-loading="false" data-no-visuals="true" data-size="medium"
data-variant="invisible" aria-describedby=":r16j:-loading-announcement"
aria-labelledby=":r16h:" style="box-sizing: border-box; font-style: inherit;
font-variant: inherit; font-weight: 500; font-stretch: inherit; font-size:
14px; line-heig
ht: inherit; font-family: inherit; font-optical-sizing: inherit;
font-size-adjust: inherit; font-kerning: inherit; font-feature-settings:
inherit; font-variation-settings: inherit; margin: 0px; overflow: visible;
text-transform: none; appearance: none; cursor: pointer; border-radius: 6px;
align-items: center; background-color: rgb(246, 248, 250); border-style: solid;
border-width: 1px; border-image: none 100% / 1 / 0 stretch; border-color:
rgba(0, 0, 0, 0); color: rgb(89, 99, 110); display: inline-grid; gap: 8px;
height: 32px; place-content: center; min-width: unset; padding: unset;
text-align: center; text-decoration: none; transition: color 80ms
cubic-bezier(0.65, 0, 0.35, 1), fill, background-color, border-color;
user-select: none; flex-shrink: 0; width: 32px; box-shadow: none;"><svg
aria-hidden="true" focusable="false" class="octicon octicon-copy" viewBox="0 0
16 16" width="16" height="16" fill="currentColor" display="inline-block"
overflow="visible" style="vertical-align: text-
bottom;"><path d="M0 6.75C0 5.784.784 5 1.75 5h1.5a.75.75 0 0 1 0
1.5h-1.5a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0
.25-.25v-1.5a.75.75 0 0 1 1.5 0v1.5A1.75 1.75 0 0 1 9.25 16h-7.5A1.75 1.75 0 0
1 0 14.25Z"></path><path d="M5 1.75C5 .784 5.784 0 6.75 0h7.5C15.216 0 16 .784
16 1.75v7.5A1.75 1.75 0 0 1 14.25 11h-7.5A1.75 1.75 0 0 1 5
9.25Zm1.75-.25a.25.25 0 0 0-.25.25v7.5c0 .138.112.25.25.25h7.5a.25.25 0 0 0
.25-.25v-7.5a.25.25 0 0 0-.25-.25Z"></path></svg></button></div></div><div
class="CodeBlock-module__codeContainer--dAEis" style="box-sizing: border-box;
background-color: rgb(255, 255, 255); border-color: rgba(209, 217, 224, 0.7);
border-style: solid; border-width: 0px 1px 1px; border-image: none 100% / 1 / 0
stretch; border-radius: 0px 0px 12px 12px; overflow: hidden;"><pre
class="CodeBlock-module__code--KUcqT" tabindex="0" style="box-sizing:
border-box; font-family: ui-monospace, SFMono-Regular, "SF Mono",
Menlo, Consolas, "Liberation Mono"
;, monospace; font-size: 11.9px; margin: 0px !important; overflow-wrap:
normal; padding: 16px 24px !important; overflow: auto; line-height: 1.45;
color: rgb(31, 35, 40); background: none !important; border-radius: 0px
!important;"><code class="" style="box-sizing: border-box; font-family:
ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
"Liberation Mono", monospace; font-size: 11.9px; padding: 0px;
margin: 0px; white-space: pre; background: transparent; border-radius: 6px;
word-break: normal; border: 0px; display: inline; overflow: visible;
line-height: inherit; overflow-wrap: normal;"><span class="hljs-built_in"
style="box-sizing: border-box; color: rgb(149, 56, 0);"><span
style="box-sizing: border-box;">LAG</span></span><span style="box-sizing:
border-box;">(salary, </span><span class="hljs-number" style="box-sizing:
border-box; color: rgb(5, 80, 174);"><span style="box-sizing:
border-box;">2</span></span><span style="box-sizing: border-box;">, </span>
<span class="hljs-number" style="box-sizing: border-box; color: rgb(5, 80,
174);"><span style="box-sizing: border-box;">0</span></span><span
style="box-sizing: border-box;">) </span><span class="hljs-keyword"
style="box-sizing: border-box; color: rgb(207, 34, 46);"><span
style="box-sizing: border-box;">OVER</span></span> <span style="box-sizing:
border-box;">(</span><span class="hljs-keyword" style="box-sizing: border-box;
color: rgb(207, 34, 46);"><span style="box-sizing:
border-box;">PARTITION</span></span> <span class="hljs-keyword"
style="box-sizing: border-box; color: rgb(207, 34, 46);"><span
style="box-sizing: border-box;">BY</span></span> <span style="box-sizing:
border-box;">dept </span><span class="hljs-keyword" style="box-sizing:
border-box; color: rgb(207, 34, 46);"><span style="box-sizing:
border-box;">ORDER</span></span> <span class="hljs-keyword" style="box-sizing:
border-box; color: rgb(207, 34, 46);"><span style="box-sizing:
border-box;">BY</span></span> <span style=
"box-sizing: border-box;">hire_date)
</span></code></pre></div></figure><ul style="box-sizing: border-box;
padding-left: 2em; margin-top: 0px; margin-bottom: 16px; color: rgb(31, 35,
40); font-family: -apple-system, "system-ui", "Segoe UI",
"Noto Sans", Helvetica, Arial, sans-serif, "Apple Color
Emoji", "Segoe UI Emoji"; font-size: 14px; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400;
letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px;
text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width:
0px; white-space: normal; background-color: rgb(255, 255, 255);
text-decoration-thickness: initial; text-decoration-style: initial;
text-decoration-color: initial;"><li style="box-sizing: border-box;"><span
style="box-sizing: border-box;">The<span> </span></span><span
style="box-sizing: border-box;">constants<span> </span></span><span
style="box-sizing: border-box;">needed<span> </span><
/span><span style="box-sizing: border-box;">are<span> </span></span><code
node="[object Object]" style="box-sizing: border-box; font-family:
ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
"Liberation Mono", monospace; font-size: 11.9px; padding: 0.2em
0.4em; margin: 0px; white-space: break-spaces; background-color: rgba(129, 139,
152, 0.12); border-radius: 6px;"><span style="box-sizing:
border-box;">2</span></code><span> </span><span style="box-sizing:
border-box;">and<span> </span></span><code node="[object Object]"
style="box-sizing: border-box; font-family: ui-monospace, SFMono-Regular,
"SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
font-size: 11.9px; padding: 0.2em 0.4em; margin: 0px; white-space:
break-spaces; background-color: rgba(129, 139, 152, 0.12); border-radius:
6px;"><span style="box-sizing: border-box;">0</span></code><span
style="box-sizing: border-box;">,<span> </span></span><span style="box-sizing:
bo
rder-box;">so<span> </span></span><code node="[object Object]"
style="box-sizing: border-box; font-family: ui-monospace, SFMono-Regular,
"SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
font-size: 11.9px; padding: 0.2em 0.4em; margin: 0px; white-space:
break-spaces; background-color: rgba(129, 139, 152, 0.12); border-radius:
6px;"><span style="box-sizing: border-box;">constants </span><span
style="box-sizing: border-box;">= </span><span style="box-sizing:
border-box;">[2, </span><span style="box-sizing:
border-box;">0]</span></code><span style="box-sizing:
border-box;">.</span></li></ul><p style="box-sizing: border-box; margin-top:
0px; margin-bottom: 16px; color: rgb(31, 35, 40); font-family: -apple-system,
"system-ui", "Segoe UI", "Noto Sans", Helvetica,
Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
font-size: 14px; font-style: normal; font-variant-ligatures: normal;
font-variant-caps: norm
al; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start;
text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px;
-webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255,
255, 255); text-decoration-thickness: initial; text-decoration-style: initial;
text-decoration-color: initial;"><strong style="box-sizing: border-box;
font-weight: 600;"><span style="box-sizing: border-box;">Input<span>
</span></span><span style="box-sizing: border-box;">to<span>
</span></span><span style="box-sizing: border-box;">the<span>
</span></span><span style="box-sizing: border-box;">Window<span>
</span></span><span style="box-sizing: border-box;">node:</span></strong></p>
employee_id | salary | 2 | 0
-- | -- | -- | --
... | ... | 2 | 0
<p style="box-sizing: border-box; margin-top: 0px; margin-bottom: 16px;
color: rgb(31, 35, 40); font-family: -apple-system, "system-ui",
"Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif,
"Apple Color Emoji", "Segoe UI Emoji"; font-size: 14px;
font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal;
font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start;
text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px;
-webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255,
255, 255); text-decoration-thickness: initial; text-decoration-style: initial;
text-decoration-color: initial;"><span style="box-sizing:
border-box;">So:</span></p><ul style="box-sizing: border-box; padding-left:
2em; margin-top: 0px; margin-bottom: 16px; color: rgb(31, 35, 40); font-family:
-apple-system, "system-ui", "Segoe UI", "Noto
Sans", Helvetica, Arial, s
ans-serif, "Apple Color Emoji", "Segoe UI Emoji";
font-size: 14px; font-style: normal; font-variant-ligatures: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans:
2; text-align: start; text-indent: 0px; text-transform: none; widows: 2;
word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal;
background-color: rgb(255, 255, 255); text-decoration-thickness: initial;
text-decoration-style: initial; text-decoration-color: initial;"><li
style="box-sizing: border-box;"><code node="[object Object]" style="box-sizing:
border-box; font-family: ui-monospace, SFMono-Regular, "SF Mono",
Menlo, Consolas, "Liberation Mono", monospace; font-size: 11.9px;
padding: 0.2em 0.4em; margin: 0px; white-space: break-spaces; background-color:
rgba(129, 139, 152, 0.12); border-radius: 6px;"><span style="box-sizing:
border-box;">RexInputRef(0)</span></code><span> </span><span style="box-sizing:
border-box;">→<span> </
span></span><span style="box-sizing: border-box;">employee_id</span></li><li
style="box-sizing: border-box; margin-top: 0.25em;"><code node="[object
Object]" style="box-sizing: border-box; font-family: ui-monospace,
SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation
Mono", monospace; font-size: 11.9px; padding: 0.2em 0.4em; margin: 0px;
white-space: break-spaces; background-color: rgba(129, 139, 152, 0.12);
border-radius: 6px;"><span style="box-sizing:
border-box;">RexInputRef(1)</span></code><span> </span><span style="box-sizing:
border-box;">→<span> </span></span><span style="box-sizing:
border-box;">salary</span></li><li style="box-sizing: border-box; margin-top:
0.25em;"><code node="[object Object]" style="box-sizing: border-box;
font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo,
Consolas, "Liberation Mono", monospace; font-size: 11.9px; padding:
0.2em 0.4em; margin: 0px; white-space: break-spaces; background-color: rgba
(129, 139, 152, 0.12); border-radius: 6px;"><span style="box-sizing:
border-box;">RexInputRef(2)</span></code><span> </span><span style="box-sizing:
border-box;">→<span> </span></span><span style="box-sizing:
border-box;">constants[0]<span> </span></span><span style="box-sizing:
border-box;">=<span> </span></span><span style="box-sizing:
border-box;">2</span></li><li style="box-sizing: border-box; margin-top:
0.25em;"><code node="[object Object]" style="box-sizing: border-box;
font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo,
Consolas, "Liberation Mono", monospace; font-size: 11.9px; padding:
0.2em 0.4em; margin: 0px; white-space: break-spaces; background-color:
rgba(129, 139, 152, 0.12); border-radius: 6px;"><span style="box-sizing:
border-box;">RexInputRef(3)</span></code><span> </span><span style="box-sizing:
border-box;">→<span> </span></span><span style="box-sizing:
border-box;">constants[1]<span> </span></span><span style="box-sizing:
border-box;">=<span> </span></span><span style="box-sizing:
border-box;">0</span></li></ul>
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: commits-unsubscr...@pinot.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: commits-unsubscr...@pinot.apache.org
For additional commands, e-mail: commits-h...@pinot.apache.org
