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Results tagged with index
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user 159688
A database structure that can improve the speed of queries at the cost of disk space and slower inserts/updates. It stores a copy of one or more columns sorted but structures the data differently to allow faster access.
6
votes
1
answer
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Creating index on a big text column in postgres
Query:
select * from tbl WHERE ( col ~~ '%zzz%')
Trying to create a btree index on the column
CREATE INDEX tbl_col_btree_idx ON tbl USING btree(col);
returns:
ERROR: index row requires 8456 bytes … the index worked with the error below):
CREATE INDEX text_ind ON tbl USING GIN (to_tsvector('english', col));
However when creating this index, it ignored some data with the error:
Word is too long …
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