siddharthteotia commented on code in PR #9333:
URL: https://github.com/apache/pinot/pull/9333#discussion_r988644335
##########
pinot-segment-local/src/main/java/org/apache/pinot/segment/local/utils/TableConfigUtils.java:
##########
@@ -897,6 +903,40 @@ private static void validateFieldConfigList(@Nullable
List<FieldConfig> fieldCon
}
}
+ /**
+ * Validates the compatibility of the indexes if the column has the forward
index disabled. Throws exceptions due to
+ * compatibility mismatch. The checks performed are:
+ * - Validate dictionary is enabled.
+ * - Validate inverted index is enabled.
+ * - Validate that either no range index exists for column or the range
index version is at least 2 and isn't a
+ * multi-value column (since mulit-value defaults to index v1).
+ */
+ private static void validateForwardIndexDisabledIndexCompatibility(String
columnName, FieldConfig fieldConfig,
+ IndexingConfig indexingConfigs, List<String> noDictionaryColumns, Schema
schema) {
+ Map<String, String> fieldConfigProperties = fieldConfig.getProperties();
+ if (fieldConfigProperties == null) {
+ return;
+ }
+
+ boolean forwardIndexDisabled =
Boolean.parseBoolean(fieldConfigProperties.get(FieldConfig.FORWARD_INDEX_DISABLED));
+ if (!forwardIndexDisabled) {
+ return;
+ }
+
+ FieldSpec fieldSpec = schema.getFieldSpecFor(columnName);
+ Preconditions.checkState(noDictionaryColumns == null ||
!noDictionaryColumns.contains(columnName),
+ String.format("Forward index disabled column %s must have dictionary
enabled", columnName));
+ Preconditions.checkState(indexingConfigs.getInvertedIndexColumns() != null
+ && indexingConfigs.getInvertedIndexColumns().contains(columnName),
+ String.format("Forward index disabled column %s must have inverted
index enabled", columnName));
+ Preconditions.checkState(indexingConfigs.getRangeIndexColumns() == null
Review Comment:
(nit) This check can be cleaned up / broken into 2 checks to make code
readable
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