tdbc::postgres

A console session to illustrate the problem follows below. Note that the documentation says:

"The columns object command allows the program to query the connection for the names of columns that exist in a given table."

In Postgres you identify tables by a fully qualified name, using the following name convention: <schema name>.

(System32) 49 % package require tdbc::postgres

1.0.0

(System32) 50 % tdbc::postgres::connection create db -user postgres -password postgres -db mydb

::db

(System32) 51 % db allrows {create schema myschema}

(System32) 52 % db allrows {create table myschema.mytable (id serial primary key, field1 text)}

(System32) 53 % db columns myschema.mytable field1

(System32) 54 % db columns mytable field1

relation "mytable" does not exist

(System32) 55 % db allrows {set search_path=myschema,public}

(System32) 56 % db columns mytable field1

field1 {name field1 type text nullable 1}

(System32) 57 %

Please have a look at branch medranocalvo-correct-quoting [9485f6bb80].  Does it solve your problem?