jhugomoore commented on code in PR #3184:
URL: https://github.com/apache/calcite/pull/3184#discussion_r1181870690
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core/src/main/java/org/apache/calcite/sql/fun/SqlPositionFunction.java:
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@@ -53,12 +57,23 @@ public SqlPositionFunction(String name) {
int leftPrec,
int rightPrec) {
final SqlWriter.Frame frame = writer.startFunCall(getName());
- call.operand(0).unparse(writer, leftPrec, rightPrec);
- writer.sep("IN");
- call.operand(1).unparse(writer, leftPrec, rightPrec);
- if (3 == call.operandCount()) {
- writer.sep("FROM");
+ if (2 == call.operandCount() || 3 == call.operandCount()) {
+ call.operand(0).unparse(writer, leftPrec, rightPrec);
+ writer.sep("IN");
+ call.operand(1).unparse(writer, leftPrec, rightPrec);
+ if (3 == call.operandCount()) {
+ writer.sep("FROM");
+ call.operand(2).unparse(writer, leftPrec, rightPrec);
+ }
+ }
+ if (4 == call.operandCount()) {
Review Comment:
As far as my understanding, this 4 argument position function doesn't exist
outside of calcite. I was basically left with the choice of adding another
keyword in the function (would get confusing and doesn't have a clear best
identifier), or to just default to comma separated operands, wasn't sure the
best choice. Let me know if you think I should switch it over.
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