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Such references failed with "cache lookup failed for type 0" because we didn't resolve the type of the CYCLE column until after analyzing the CTE's query. We can just move that processing to before the recursive parse_sub_analyze call, though. While here, invent a couple of local variables to make this code less egregiously wider-than-80-columns. Per bug #17723 from Vik Fearing. Back-patch to v14 where the CYCLE feature was added. Discussion: https://postgr.es/m/17723-2c4985ff111e7bba@postgresql.org
PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. PostgreSQL has many language interfaces, many of which are listed here: https://www.postgresql.org/download/ See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.