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77 lines
3.2 KiB
Markdown
77 lines
3.2 KiB
Markdown
---
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title: "postgres-sql"
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type: docs
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weight: 1
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description: >
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A "postgres-sql" tool executes a pre-defined SQL statement against a Postgres
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database.
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---
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## About
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A `postgres-sql` tool executes a pre-defined SQL statement against a Postgres
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database. It's compatible with any of the following sources:
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- [alloydb-postgres](../sources/alloydb-pg.md)
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- [cloud-sql-postgres](../sources/cloud-sql-pg.md)
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- [postgres](../sources/postgres.md)
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The specified SQL statement is executed as a [prepared statement][pg-prepare],
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and specified parameters will inserted according to their position: e.g. `1`
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will be the first parameter specified, `$@` will be the second parameter, and so
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on.
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[pg-prepare]: https://www.postgresql.org/docs/current/sql-prepare.html
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## Example
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```yaml
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tools:
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search_flights_by_number:
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kind: postgres-sql
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source: my-pg-instance
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statement: |
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SELECT * FROM flights
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WHERE airline = $1
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AND flight_number = $2
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LIMIT 10
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description: |
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Use this tool to get information for a specific flight.
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Takes an airline code and flight number and returns info on the flight.
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Do NOT use this tool with a flight id. Do NOT guess an airline code or flight number.
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A airline code is a code for an airline service consisting of two-character
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airline designator and followed by flight number, which is 1 to 4 digit number.
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For example, if given CY 0123, the airline is "CY", and flight_number is "123".
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Another example for this is DL 1234, the airline is "DL", and flight_number is "1234".
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If the tool returns more than one option choose the date closes to today.
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Example:
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{{
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"airline": "CY",
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"flight_number": "888",
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}}
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Example:
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{{
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"airline": "DL",
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"flight_number": "1234",
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}}
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parameters:
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- name: airline
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type: string
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description: Airline unique 2 letter identifier
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- name: flight_number
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type: string
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description: 1 to 4 digit number
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```
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## Reference
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| **field** | **type** | **required** | **description** |
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|-------------|:------------------------------------------:|:------------:|--------------------------------------------------------------------------------------------------|
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| kind | string | true | Must be "postgres-sql". |
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| source | string | true | Name of the source the SQL should execute on. |
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| description | string | true | Description of the tool that is passed to the LLM. |
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| statement | string | true | SQL statement to execute on. |
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| parameters | [parameters](_index#specifying-parameters) | false | List of [parameters](_index#specifying-parameters) that will be inserted into the SQL statement. |
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