Horton

pg_get_viewdef() and lateral references in COLUMNS of GRAPH_TABLE

Peter Eisentraut <peter@eisentraut.org>

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Commit: 9d2979dd6856e160f35544d79eb11f2c68c30985
Author: Peter Eisentraut <peter@eisentraut.org>
Date: 2026-04-24T07:12:03Z
Releases: 19 (unreleased) 
pg_get_viewdef() and lateral references in COLUMNS of GRAPH_TABLE

Expressions in GRAPH_TABLE COLUMNS list may have lateral references.
get_rule_expr() requires lateral namespaces to deparse such
references.  get_from_clause_item() does not pass them when processing
the expressions in COLUMNS list causing ERROR "bogus varlevelsup: 0
offset 0".  Fix get_from_clause_item() to pass input deparse_context
containing lateral namespaces to get_rule_expr() instead of the dummy
context.

Author: Satyanarayana Narlapuram <satyanarlapuram@gmail.com>
Reviewed-by: Ashutosh Bapat <ashutosh.bapat.oss@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/CAHg%2BQDcLVa2iBnggkHxY4itZbXtDMfsYHEjnCUYe9hNbnxDi-w%40mail.gmail.com

Files

PathChange+/−
src/backend/utils/adt/ruleutils.c modified +2 −8
src/test/regress/expected/graph_table.out modified +18 −8
src/test/regress/sql/graph_table.sql modified +10 −2

Discussion