54 lines
1.5 KiB
Elixir
54 lines
1.5 KiB
Elixir
defmodule BdfrBrowser.Repo.Migrations.AddPostCommentFulltextSearch do
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use Ecto.Migration
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def up do
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# Posts
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execute """
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ALTER TABLE posts
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ADD COLUMN searchable_content tsvector
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GENERATED ALWAYS AS (
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setweight(to_tsvector('english', coalesce(title, '')), 'A') ||
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setweight(to_tsvector('german', coalesce(title, '')), 'A') ||
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setweight(to_tsvector('english', coalesce(selftext, '')), 'B') ||
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setweight(to_tsvector('german', coalesce(selftext, '')), 'B') ||
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setweight(to_tsvector('simple', coalesce(author, '')), 'C')
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) STORED;
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"""
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execute """
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CREATE INDEX posts_searchable_content_index ON posts USING gin(searchable_content);
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"""
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# Comments
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execute """
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ALTER TABLE comments
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ADD COLUMN searchable_content tsvector
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GENERATED ALWAYS AS (
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setweight(to_tsvector('english', coalesce(body, '')), 'A') ||
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setweight(to_tsvector('german', coalesce(body, '')), 'A') ||
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setweight(to_tsvector('simple', coalesce(author, '')), 'B')
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) STORED;
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"""
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execute """
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CREATE INDEX comments_searchable_content_index ON comments USING gin(searchable_content);
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"""
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end
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def down do
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# Posts
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drop index("posts", [:searchable_content])
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alter table(:posts) do
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remove :searchable_content
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end
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# Comments
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drop index("comments", [:searchable_content])
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alter table(:comments) do
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remove :searchable_content
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end
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end
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end
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