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Diffstat (limited to 'src/backend/parser/parse_target.c')
| -rw-r--r-- | src/backend/parser/parse_target.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/backend/parser/parse_target.c b/src/backend/parser/parse_target.c index 4932e58022b..3d31be38d56 100644 --- a/src/backend/parser/parse_target.c +++ b/src/backend/parser/parse_target.c @@ -691,7 +691,13 @@ transformAssignmentIndirection(ParseState *pstate, if (indirection && !basenode) { - /* Set up a substitution. We reuse CaseTestExpr for this. */ + /* + * Set up a substitution. We abuse CaseTestExpr for this. It's safe + * to do so because the only nodes that will be above the CaseTestExpr + * in the finished expression will be FieldStore and ArrayRef nodes. + * (There could be other stuff in the tree, but it will be within + * other child fields of those node types.) + */ CaseTestExpr *ctest = makeNode(CaseTestExpr); ctest->typeId = targetTypeId; |