ashishjayamohan commented on code in PR #14385:
URL: https://github.com/apache/pinot/pull/14385#discussion_r1833156423
##########
pinot-core/src/main/java/org/apache/pinot/core/query/optimizer/filter/TimePredicateFilterOptimizer.java:
##########
@@ -411,6 +428,80 @@ && isStringLiteral(dateTimeConvertOperands.get(3)),
}
}
+ private void optimizeDateTrunc(Function filterFunction, FilterKind
filterKind) {
+ List<Expression> filterOperands = filterFunction.getOperands();
+ List<Expression> dateTruncOperands =
filterOperands.get(0).getFunctionCall().getOperands();
+
+ // Check if date trunc function is being applied on a literal value
+ if (dateTruncOperands.get(1).isSetLiteral()) {
+ return;
+ }
+
+ Long lowerMillis = null;
+ Long upperMillis = null;
+ DateTimeFormatSpec inputFormat = new DateTimeFormatSpec("TIMESTAMP");
+ String inputTimeUnit = (dateTruncOperands.size() >= 3) ?
dateTruncOperands.get(2).getLiteral().getStringValue()
+ : TimeUnit.MILLISECONDS.name();
+ String outputTimeUnit = (dateTruncOperands.size() == 5) ?
dateTruncOperands.get(4).getLiteral().getStringValue()
+ : TimeUnit.MILLISECONDS.name();
+ boolean lowerInclusive = true;
+ boolean upperInclusive = true;
+ List<Expression> operands = new ArrayList<>(dateTruncOperands);
+ switch (filterKind) {
+ case EQUALS:
+ operands.set(1, getExpression(filterOperands.get(1), inputFormat,
inputTimeUnit, outputTimeUnit));
+ lowerMillis = dateTruncFloor(operands);
+ upperMillis = dateTruncCeil(operands);
Review Comment:
See: https://github.com/apache/pinot/pull/14385#discussion_r1833152007
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