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-rw-r--r--src/include/nodes/primnodes.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/src/include/nodes/primnodes.h b/src/include/nodes/primnodes.h
index fd65ee8f9c5..5b190bb99bd 100644
--- a/src/include/nodes/primnodes.h
+++ b/src/include/nodes/primnodes.h
@@ -445,7 +445,10 @@ typedef enum CoercionContext
} CoercionContext;
/*
- * CoercionForm - how to display a node that could have come from a cast
+ * CoercionForm - how to display a FuncExpr or related node
+ *
+ * "Coercion" is a bit of a misnomer, since this value records other
+ * special syntaxes besides casts, but for now we'll keep this naming.
*
* NB: equal() ignores CoercionForm fields, therefore this *must* not carry
* any semantically significant information. We need that behavior so that
@@ -457,7 +460,8 @@ typedef enum CoercionForm
{
COERCE_EXPLICIT_CALL, /* display as a function call */
COERCE_EXPLICIT_CAST, /* display as an explicit cast */
- COERCE_IMPLICIT_CAST /* implicit cast, so hide it */
+ COERCE_IMPLICIT_CAST, /* implicit cast, so hide it */
+ COERCE_SQL_SYNTAX /* display with SQL-mandated special syntax */
} CoercionForm;
/*