Most PostgreSQL functions are wrapper functions for libpq. Reading documents
about libpq will help.
Answer to your question is, it does not read all data into memory. I think most
DB doesn't do that also.
Data will be buffered in PostgreSQL backend, size is depends on your
configuration.
I'm not
Just out of curiosity, can anyone explain the mechanics behind accessing a
database query result set.
ie
$result_id = pg_execute( 'select * from my_table' );
when I call loop through pg_fetch_row( $result_id, $rom_num ) or
pg_fetch_object( $result_id, $rom_num )
has php read the entire result s
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