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psql's lexer has historically deleted dash-dash (single-line) comments from what's collected and sent to the server. This is inconsistent with what it does for slash-star comments, and people have complained before that they wish such comments would be captured in the server log. Undoing the decision completely seems like too big a behavioral change, however. In particular, comments on lines preceding the start of a query are generally not thought of as being part of that query. What we can do to improve the situation is to capture comments that are clearly *within* a query, that is after the first non-whitespace, non-comment token but before the query's ending semicolon or backslash command. This is a nearly trivial code change, and it affects only a few regression test results. (It is tempting to try to apply the same rule to slash-star comments. But it's hard to see how to do that without getting strange history behavior for comments that cross lines, especially if the user then starts a new query on the same line as the star-slash. In view of the lack of complaints, let's leave that case alone.) Discussion: https://postgr.es/m/CAJcOf-cAdMVr7azeYR7nWKsNp7qhORzc84rV6d7m7knG5Hrtsw@mail.gmail.com |
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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/.