Ninth, drop the demo_ts tablespace: DROP TABLESPACE demo_ts; Instead of dropping the database, you can move it to another tablespace such as pg_default by using the ALTER TABLE statement as follows: ALTER DATABASE demodb SET TABLESPACE = pg_default; And then delete the demo_ts tablespace...
Also, if updating a row in a given partition causes it to move to another partition due to the new partition key, an error will occur. A partition must have the same column names and types as the table of which it is a partition. Therefore, modifications to the column names or types ...
do_move) { /* caller doesn't want us to move the hash entry into the array */ return res; } else { /* move buffer from hashtable into the free array slot */ bool found; PrivateRefCountEntry *free; /* Ensure there's a free array slot */ ReservePrivateRefCountEntry(); /* Use ...
Sometimes, for one reason or another, PostgreSQL has been unable to completely “freeze” a table, and the database can get dangerously close to the point that the wraparound data corruption can occur. Since vacuuming the indexes takes most of the time, sometimes, you want to tell PostgreSQL...
“Postgres has nice array handling. So you can store array types such as an array of ints or an array of varchars in your table. There are also various array functions and operators to read the arrays, manipulate them, and so on.” ...
PostgreSQL , 10.0 , 分区表 , partitiion table , range , list 背景 PostgreSQL 和它的LOGO大象一样,给人非常强大的安全感。 就拿它的Feature来说,一个大的feature要打磨很多年才能正式的合并到master分支。 比如并行计算的特性,从9.4就开始准备,加入了work process和dynamic shared memory的功能,奠定了多进程并...
do_move) { /* caller doesn't want us to move the hash entry into the array */ return res; } else { /* move buffer from hashtable into the free array slot */ bool found; PrivateRefCountEntry *free; /* Ensure there's a free array slot */ ReservePrivateRefCountEntry(); /* Use ...
Drag and drop selected text on Query Editor did not move the text. Minor bug fixes and improvements. To upgrade, please visit our Customer Center. Feb 13 2019 Navicat for PostgreSQL (Windows) version 12.1.15 Improvements: Add a "Drop with CASCADE" option for deleting PostgreSQL objects. Bug...
Find indexes which stored in different tablespace then their tables and move on indexes (ALTER INDEX indexname SET TABLESPACE tablespace) into tablespace where the parent table is stored.table_candidates_from_ssd.sql and table_candidates_to_ssd.sql...
Find indexes which stored in different tablespace then their tables and move on indexes (ALTER INDEX indexname SET TABLESPACE tablespace) into tablespace where the parent table is stored. Show tables which should be moved from SSD (high writes, low reads) or to SSD (low writes, high reads)...