3dfb1942d9
If you write the literal 'abc''def' in an EXEC SQL command, that will come out the other end as 'abc'def', triggering a syntax error in the backend. Likewise, "abc""def" is reduced to "abc"def" which is wrong syntax for a quoted identifier. The cause is that the lexer thinks it should emit just one quote mark, whereas what it really should do is keep the string as-is. Add some docs and test cases, too. Although this seems clearly a bug, I fear users wouldn't appreciate changing it in minor releases. Some may well be working around it by applying an extra doubling of affected quotes, as for example sql/dyntest.pgc has been doing. Per investigation of a report from 1250kv, although this isn't exactly what he/she was on about. Discussion: https://postgr.es/m/673825.1603223178@sss.pgh.pa.us
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/.