applied directly to a ta- ble column value, this reflects any compression that was done. pg_column_compression ( "any" ) → text Shows the compression algorithm that was used to compress an individual variable-length readline and readline-devel packages, if those are separate in your distribution. • The zlib compression library is used by default. If you don't want to use it then you must specify the -- without-zlib support compression of data with that method; see default_toast_com- pression and wal_compression. • You need Zstandard, if you want to support compression of data with that method; see wal_compression. The

applied directly to a table column value, this reflects any compression that was done. pg_column_compression ( "any" ) → text Shows the compression algorithm that was used to compress an individual vari- readline and readline-devel packages, if those are separate in your distribution. • The zlib compression library is used by default. If you don't want to use it then you must specify the --without-zlib LZ4, if you want to support compression of data with that method; see default_toast_com- pression and wal_compression. • You need Zstandard, if you want to support compression of data with that method;

applied directly to a ta- ble column value, this reflects any compression that was done. pg_column_compression ( "any" ) → text Shows the compression algorithm that was used to compress an individual variable-length readline and readline-devel packages, if those are separate in your distribution. • The zlib compression library is used by default. If you don't want to use it then you must specify the -- without-zlib support compression of data with that method; see default_toast_com- pression and wal_compression. • You need Zstandard, if you want to support compression of data with that method; see wal_compression. The

column value, this reflects any compression that was done. pg_column_compression ( "any" ) → text 421 Functions and Operators Function Description Shows the compression algorithm that was used to compress readline and readline-devel packages, if those are separate in your distribution. • The zlib compression library is used by default. If you don't want to use it then you must specify the --without-zlib support compression of data with that method; see default_toast_com- pression and wal_compression. 560 Installation from Source Code • You need Zstandard, if you want to support compression of data

applied directly to a ta- ble column value, this reflects any compression that was done. pg_column_compression ( "any" ) → text Shows the compression algorithm that was used to compress an individual variable-length readline and readline-devel packages, if those are separate in your distribution. • The zlib compression library is used by default. If you don't want to use it then you must specify the -- without-zlib want to support authentication using those ser- vices. • You need LZ4, if you want to support compression of data with this method; see default_toast_com- pression. • To build the PostgreSQL documentation

applied directly to a table column value, this reflects any compression that was done. pg_column_compression ( "any" ) → text Shows the compression algorithm that was used to compress an individual vari- readline and readline-devel packages, if those are separate in your distribution. • The zlib compression library is used by default. If you don't want to use it then you must specify the --without-zlib you want to support authentication using those services. • You need LZ4, if you want to support compression of data with this method; see default_toast_com- pression. • To build the PostgreSQL documentation

applied directly to a ta- ble column value, this reflects any compression that was done. pg_column_compression ( "any" ) → text Shows the compression algorithm that was used to compress an individual variable-length readline and readline-devel packages, if those are separate in your distribution. • The zlib compression library is used by default. If you don't want to use it then you must specify the -- without-zlib support compression of data with that method; see default_toast_com- pression and wal_compression. • You need Zstandard, if you want to support compression of data with that method; see wal_compression. The

applied directly to a table column value, this reflects any compression that was done. pg_column_compression ( "any" ) → text Shows the compression algorithm that was used to compress an individual vari- if those are separate in your distribution. 532 Installation from Source Code • The zlib compression library is used by default. If you don't want to use it then you must specify the --without-zlib LZ4, if you want to support compression of data with that method; see default_toast_com- pression and wal_compression. • You need Zstandard, if you want to support compression of data with that method;

readline and readline-devel packages, if those are separate in your distribution. • The zlib compression library is used by default. If you don’t want to use it then you must specify the --without-zlib building PL/Python. Binaries can be downloaded from http://www.python.org. zlib Required for compression support in pg_dump and pg_restore. Binaries can be downloaded from http://www.zlib.net. 16.1.2 equivalent entry in /etc/sysctl.conf. You might also wish to modify the related setting vm.overcommit_ratio. For details see the kernel documentation file Documentation/vm/overcommit-accounting. Another approach

readline and readline-devel pack- ages, if those are separate in your distribution. • The zlib compression library is used by default. If you don’t want to use it then you must specify the --without-zlib building PL/Python. Binaries can be downloaded from http://www.python.org. zlib Required for compression support in pg_dump and pg_restore. Binaries can be downloaded from http://www.zlib.net. 440 Chapter equivalent entry in /etc/sysctl.conf. You might also wish to modify the related setting vm.overcommit_ratio. For details see the kernel documentation file Documentation/vm/overcommit-accounting. Another approach