xuzifu666 commented on code in PR #4719:
URL: https://github.com/apache/calcite/pull/4719#discussion_r2659262310
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core/src/main/java/org/apache/calcite/sql/dialect/MssqlSqlDialect.java:
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@@ -200,6 +200,20 @@ public MssqlSqlDialect(Context context) {
unparseBoolLiteralToCondition(writer, value);
}
+ @Override public SqlNode rewriteBooleanLiteral(SqlNode node) {
+ if (node instanceof SqlLiteral) {
+ SqlLiteral literal = (SqlLiteral) node;
+ if (literal.getTypeName() == SqlTypeName.BOOLEAN) {
+ Boolean value = (Boolean) literal.getValue();
+ if (value == null) {
+ return SqlLiteral.createNull(SqlParserPos.ZERO);
Review Comment:
Do we also need to add a case to cover this?
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