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feat: Optional msgspec serialization #687

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Merged
edgarrmondragon merged 1 commit into from
Oct 7, 2025
Merged

feat: Optional msgspec serialization #687

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3 changes: 3 additions & 0 deletions pyproject.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,9 @@ dependencies = [
"sshtunnel==0.4.0",
"singer-sdk[faker,sql]~=0.50.0",
]
optional-dependencies.msgspec = [
"msgspec>=0.19.0",
]

[project.urls]
Homepage = "https://meltano.com"
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12 changes: 12 additions & 0 deletions tap_postgres/tap.py
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Expand Up @@ -29,6 +29,14 @@
if TYPE_CHECKING:
from collections.abc import Mapping, Sequence

# Try to import MsgSpecWriter for better performance
try:
from singer_sdk.contrib.msgspec import MsgSpecWriter

_MSGSPEC_AVAILABLE = True
except ImportError:
_MSGSPEC_AVAILABLE = False


REPLICATION_SLOT_PATTERN = "^(?!pg_)[A-Za-z0-9_]{1,63}$"

Expand All @@ -40,6 +48,10 @@ class TapPostgres(SQLTap):
package_name = "meltanolabs-tap-postgres"
default_stream_class = PostgresStream

# Use MsgSpecWriter if available for ~15-20% performance improvement
if _MSGSPEC_AVAILABLE:
message_writer_class = MsgSpecWriter

def __init__(
self,
*args,
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60 changes: 51 additions & 9 deletions uv.lock
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