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lang-sql
psqlis from PostgreSQL 10.5 but what version of PostgreSQL is the server running?SELECT version();gives me PostgreSQL 9.4.19 on x86_64-pc-linux-gnu (Ubuntu 9.4.19-1.pgdg14.04+1), compiled by gcc (Ubuntu 4.8.4-2ubuntu1~14.04.4) 4.8.4, 64-bit. Does it mean that I should read documentation for version 9.4 instead of 10?IDENTITYwas added in version 10, you'll want to useserialwith 9.4.serialjust to createdistributors?