when trying to insert a long-long value, I get the following error:
index row size 3120 exceeds maximum 2712 for index "ir_translation_ltns" HINT: Values larger than 1/3 of a buffer page cannot be indexed. Consider a function index of an MD5 hash of the value, or use full text indexing.
is there a way to generate this recommended function index of an md5 hash on an already existing database and tables (filled with data)?
Just create index this way, e.g. CREATE INDEX ir_translation_ltns ON tab ((md5(col))); where "tab" and "col" are table and column of which you want to create btree index.
This probably goes without saying, but you'll have to use col = md5('blahblahblahblah') in your qualifiers to get the benefit of the index.
