shounakmk219 commented on code in PR #12417:
URL: https://github.com/apache/pinot/pull/12417#discussion_r1503661878
##########
pinot-broker/src/main/java/org/apache/pinot/broker/requesthandler/BaseBrokerRequestHandler.java:
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@@ -1660,10 +1640,25 @@ static String getActualColumnName(String rawTableName,
String columnName, @Nulla
return columnName;
}
String columnNameToCheck;
- if (columnName.regionMatches(ignoreCase, 0, rawTableName, 0,
rawTableName.length())
- && columnName.length() > rawTableName.length() &&
columnName.charAt(rawTableName.length()) == '.') {
- columnNameToCheck = ignoreCase ?
columnName.substring(rawTableName.length() + 1).toLowerCase()
- : columnName.substring(rawTableName.length() + 1);
+ String resolvedColumnName = columnName;
+ if (rawTableName.contains(".")) { // table name has database prefix
+ String databaseName = rawTableName.split("\\.")[0];
Review Comment:
Previous logic is still valid and present at new line # 1657.
This code is only trying to handle the case when user queries something like
`select tb1.col1 from db1.tb1` or `select tb1.col1 from tb1` with right
database header. In such cases we need to prefix the whole column literal with
the database name as the following logic is based on rawTableName which is the
physical table name and will have database prefix.
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