Use when connecting to PostGIS databases, loading spatial tables, or executing SQL from PyQGIS. Prevents connection string errors and plain-text password exposure in production. Covers QgsDataSourceUri, PostGIS layer loading (table/view/SQL), SQL execution, schema discovery, and authentication. Keyw
Use when connecting to PostGIS databases, loading spatial tables, or executing SQL from PyQGIS. Prevents connection string errors and plain-text password exposure in production. Covers QgsDataSourceUri, PostGIS layer loading (table/view/SQL), SQL execution, schema discovery, and authentication. Keywords: PostGIS, QgsDataSourceUri, PostgreSQL, spatial database, SQL, database connection, schema, Pos