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[#3579] [#6431] [#7222] Fix nested set operations for SQLite

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This commit is contained in:
lukaseder 2018-03-20 12:41:54 +01:00
parent 26054fd8c6
commit a496614bb9
1 changed files with 12 additions and 2 deletions
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14
jOOQ/src/main/java/org/jooq/impl/SelectQueryImpl.java
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@ -1581,7 +1581,8 @@ final class SelectQueryImpl<R extends Record> extends AbstractResultQuery<R> imp
private static final EnumSet<SQLDialect> UNION_PARENTHESIS = EnumSet.of(DERBY, MARIADB, MYSQL, SQLITE);
private static final EnumSet<SQLDialect> NO_SUPPORT_UNION_PARENTHESES = EnumSet.of(SQLITE);
private static final EnumSet<SQLDialect> UNION_PARENTHESIS = EnumSet.of(DERBY, MARIADB, MYSQL);
private final boolean unionOpNesting() {
if (unionOp.size() > 1)
@ -1602,8 +1603,17 @@ final class SelectQueryImpl<R extends Record> extends AbstractResultQuery<R> imp
private final void unionParenthesis(Context<?> ctx, char parenthesis, Field<?>[] fields) {
boolean derivedTable =
(TRUE.equals(ctx.data(DATA_NESTED_SET_OPERATIONS)) && UNION_PARENTHESIS.contains(ctx.family()))
// [#3579] [#6431] [#7222] Some databases don't support nested set operations at all
// because they do not allow wrapping set op subqueries in parentheses
NO_SUPPORT_UNION_PARENTHESES.contains(ctx.family())
// [#3579] [#6431] [#7222] Nested set operations aren't supported, but parenthesised
// set op subqueries are.
|| (TRUE.equals(ctx.data(DATA_NESTED_SET_OPERATIONS)) && UNION_PARENTHESIS.contains(ctx.family()))
// [#2995] Ambiguity may need to be resolved when parentheses could mean both:
// Set op subqueries or insert column lists
|| ctx.data(DATA_INSERT_SELECT_WITHOUT_INSERT_COLUMN_LIST) != null
// [#7222] Workaround for https://issues.apache.org/jira/browse/DERBY-6984