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Merged
quinnj-bot merged 1 commit into from
Oct 30, 2026
Merged

Bind JSON values as their JSON text #39

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4 changes: 4 additions & 0 deletions src/execute.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -278,6 +278,10 @@ end
_param(x::Missing) = x
_param(::Nothing) = missing
_param(x::AbstractVector{UInt8})::String = string("\\x", bytes2hex(x))
# json/jsonb results are lazy JSON values; bind them (and raw JSONText) as
# their JSON text, not as Julia's display of them.
_param(x::JSON.LazyValue)::String = JSON.parse(x, JSON.JSONText).value
_param(x::JSON.JSONText)::String = x.value
# convert to postgres array literal syntax: { x, y, z }
# strings must be double-quoted and double quotes and backslashes escaped
# missing values are NULL
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9 changes: 9 additions & 0 deletions test/runtests.jl
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Expand Up @@ -1399,6 +1399,15 @@ include("trim_compile_tests.jl")
@test array_types_row.date_array == Date[Date(2024, 1, 28)]
@test isequal(array_types_row.numeric_array, [Postgres.API.parse_numeric("123.45"), missing])
@test JSON.parse(only(array_types_row.jsonb_array))["a"] == 1
# JSON values read from the server bind back as their JSON text
json_text = """{"n": 12345678901234567890.5, "s": "é"}"""
json_value = only(Tables.rowtable(DBInterface.execute(conn, "SELECT '$json_text'::jsonb AS j"))).j
json_row = only(Tables.rowtable(DBInterface.execute(conn,
raw"SELECT $1::text AS t, $2::jsonb[]::text AS a, $3::json::text AS raw",
(json_value, [json_value.n, missing], JSON.JSONText("[1, 2]")))))
@test json_row.t == json_text
@test json_row.a == "{12345678901234567890.5,NULL}"
@test json_row.raw == "[1, 2]"
end

@testset "Binary Array Round Trips" begin
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