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Add Spanner source and tool.
Spanner source is initialize with the following config:
```
sources:
my-spanner-source:
kind: spanner
project: my-project-name
instance: my-instance-name
database: my_db
# dialect: postgresql # The default dialect is google_standard_sql.
```
Spanner tool (with gsql dialect) is initialize with the following
config.
```
tools:
get_flight_by_id:
kind: spanner
source: my-cloud-sql-source
description: >
Use this tool to list all airports matching search criteria. Takes
at least one of country, city, name, or all and returns all matching
airports. The agent can decide to return the results directly to
the user.
statement: "SELECT * FROM flights WHERE id = @id"
parameters:
- name: id
type: int
description: 'id' represents the unique ID for each flight.
```
Spanner tool (with postgresql dialect) is initialize with the following
config.
```
tools:
get_flight_by_id:
kind: spanner
source: my-cloud-sql-source
description: >
Use this tool to list all airports matching search criteria. Takes
at least one of country, city, name, or all and returns all matching
airports. The agent can decide to return the results directly to
the user.
statement: "SELECT * FROM flights WHERE id = $1"
parameters:
- name: id
type: int
description: 'id' represents the unique ID for each flight.
```
Note: the only difference in config for both dialects is the sql
statement.
---------
Co-authored-by: Kurtis Van Gent <31518063+kurtisvg@users.noreply.github.com>