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dataders avatar dataders commented on August 16, 2024

solutioin: override the dbt-core's global_project/macros/materializations/seeds/helpers.sql's default__create_csv_table, synapse__create_csv_table. this new version should fetch specified configuration (and use sensible defaults) similar to how synapse__create_table_as works.
helpers.sql
default https://github.com/dbt-labs/dbt-core/blob/0721f2c1b70eca233326cdd7d3de755924415b20/core/dbt/include/global_project/macros/materializations/seeds/helpers.sql#L6

from dbt-synapse.

prdpsvs avatar prdpsvs commented on August 16, 2024

PR #138

You can now create seed tables with different distribution and index strategy by providing required confiuration in dbt_project.yml file. The default choice is REPLICATE disttribution and HEAP (no indexing). If you want to override this configuration, the following sample should help.

seeds:
  jaffle_shop:
    index: HEAP
    dist: ROUND_ROBIN
    raw_customers:
      index: HEAP
      dist: REPLICATE
    raw_payments:
      dist: HASH(payment_method)
      index: CLUSTERED INDEX(id,order_id)  

Create a new context "seeds:" at the root followed by project name and seed name. In this case the project name is jaffle_shop and seeds are raw_customers and raw_payments. Provide index and distribution values using index and dist keys. Use replicate, round_robin, hash({column name}) as a value. Example: dist: replicate. The raw_customers seed table will be replicated a table. For hash distribution, the user need to provide the vaule HASH(payment_method). Example: dist: hash(payment_method)

To specific index, index as a key and CLUSTERED INDEX({Column1, Column2}), HEAP, CLUSTERED COLUMNSTORE INDEX as a value. Example: index: HEAP. The raw_customers seed table will use heap index strategy. For clustered index, the user need to provide one or more columns to create clustered index on. Example: index: CLUSTERED INDEX(id,order_id). The default value of index and distribution can also be set for all seeds under project name.

from dbt-synapse.

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