35 lines
865 B
Markdown
35 lines
865 B
Markdown
setup for single sign on with [SSPI](https://wiki.postgresql.org/wiki/Configuring_for_single_sign-on_using_SSPI_on_Windows)
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md5 hash is salted with username in front
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Memory
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=========================================================
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see whats in the buffer cache with pg_buffercache
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`CREATE EXTENSION pg_buffercache`
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```
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SELECT
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c.relname,
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COUNT(*) AS buffers
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FROM
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pg_class c
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INNER JOIN pg_buffercache b ON
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b.relfilenode = c.relfilenode
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INNER JOIN pg_database d ON
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( b.reldatabase = d.oid
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AND d.datname = CURRENT_DATABASE())
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GROUP BY
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c.relname
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ORDER BY
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2 DESC
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LIMIT 100;
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```
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Alter Column
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==========================================================
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ALTER TABLE rlarp.pcore ALTER COLUMN pack SET DATA TYPE numeric USING pack::numeric
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psql binary for latest version is always used but pg_dump is not, you have to set the default version in ~/.postgresqlrc
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