LIKE with % on column names

Here is my query that results in a syntax error:

SELECT *
FROM account_invoice,sale_order
WHERE sale_order.name LIKE %account_invoice.origin%

The account_invoice.origin field contains the text of sale_order.name, plus other text as well, so I need to match sale_order.name string anywhere in the account_invoice.origin string.

I'm using PostgreSQL 8.4.

Try this

SELECT *
FROM account_invoice,sale_order
WHERE sale_order.name LIKE '%' || account_invoice.origin || '%'

`%` needs single quote because the pattern is a string.

`||` is the operator for [concatenation][1].


[1]:

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