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I want to create a table whose field name is of 100 characters but postgres limit for no of characters is 64 so how to change that limit to 100?
example:
Create table Test
(
PatientFirstnameLastNameSSNPolicyInsuraceTicketDetailEMRquestionEMR varchar(10)
)
This table creation fails as the name exceeds 64 characters
Actually name’s limit is equal to
NAMEDATALEN - 1bytes (not necessarily characters), default value for NAMEDATALEN is 64.NAMEDATALEN was determined at compile time (in
src/include/pg_config_manual.h). You have to recompile PostgreSQL with new NAMEDATALEN limit to make it work.However think about design and compatibility with other servers with standard 63 bytes limit. It’s not common practice to use such long names.