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Added Postgres specific || operator for concatenating two jsonb values #458

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Added Postgres specific || operator for concatenating two jsonb values #458

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11 changes: 9 additions & 2 deletions beam-postgres/Database/Beam/Postgres/PgSpecific.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -32,7 +32,7 @@ module Database.Beam.Postgres.PgSpecific

, (@>), (<@), (->#), (->$)
, (->>#), (->>$), (#>), (#>>)
, (?), (?|), (?&)
, (?), (?|), (?&), (||.)

, withoutKey, withoutIdx
, withoutKeys
Expand Down Expand Up @@ -114,7 +114,7 @@ module Database.Beam.Postgres.PgSpecific
)
where

import Database.Beam hiding (char, double)
import Database.Beam hiding ((||.), char, double)
import Database.Beam.Backend.SQL
import Database.Beam.Migrate ( HasDefaultSqlDataType(..) )
import Database.Beam.Postgres.Syntax
Expand Down Expand Up @@ -960,6 +960,13 @@ QExpr a ?| QExpr b =
QExpr a ?& QExpr b =
QExpr (pgBinOp "?&" <$> a <*> b)

-- | Postgres @||@ operator. Concatenates two jsonb values into a new jsonb value.
(||.) :: QGenExpr ctxt Postgres s (PgJSONB a)
-> QGenExpr ctxt Postgres s (PgJSONB a)
-> QGenExpr ctxt Postgres s (PgJSONB a)
QExpr a ||. QExpr b =
QExpr (pgBinOp "||" <$> a <*> b)

-- | Postgres @-@ operator on json objects. Returns the supplied json object
-- with the supplied key deleted. See 'withoutIdx' for the corresponding
-- operator on arrays.
Expand Down