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[jOOQ/jOOQ#11432] Support parsing Db2 style LISTAGG() without WITHIN

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GROUP clause
This commit is contained in:
Lukas Eder 2021-02-15 13:54:00 +01:00
parent ac3bf49009
commit bf1c3f92bd
1 changed files with 14 additions and 3 deletions
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17
jOOQ/src/main/java/org/jooq/impl/ParserImpl.java
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@ -10682,14 +10682,15 @@ final class ParserContext {
// TODO Listagg set function
OrderedAggregateFunction<?> orderedN;
OrderedAggregateFunctionOfDeferredType ordered1;
boolean optionalWithinGroup = false;
orderedN = parseHypotheticalSetFunctionIf();
if (orderedN == null)
orderedN = parseInverseDistributionFunctionIf();
if (orderedN == null)
orderedN = parseListaggFunctionIf();
optionalWithinGroup = (orderedN = parseListaggFunctionIf()) != null;
if (orderedN != null)
return orderedN.withinGroupOrderBy(parseWithinGroupN());
return orderedN.withinGroupOrderBy(parseWithinGroupN(optionalWithinGroup));
ordered1 = parseModeIf();
if (ordered1 != null)
@ -10722,7 +10723,17 @@ final class ParserContext {
}
private final List<SortField<?>> parseWithinGroupN() {
parseKeyword("WITHIN GROUP");
return parseWithinGroupN(false);
}
private final List<SortField<?>> parseWithinGroupN(boolean optional) {
if (optional) {
if (!parseKeywordIf("WITHIN GROUP"))
return emptyList();
}
else
parseKeyword("WITHIN GROUP");
parse('(');
parseKeyword("ORDER BY");
List<SortField<?>> result = parseSortSpecification();