-- Indexes and constraints
-- Generated: 2025-10-15T12:24:56.570321

-- Primary key constraints for metadata tables
ALTER TABLE meta.instruments ADD CONSTRAINT instruments_pkey PRIMARY KEY (symbol, exchange);
ALTER TABLE meta.exchanges ADD CONSTRAINT exchanges_pkey PRIMARY KEY (id);
ALTER TABLE meta.sessions ADD CONSTRAINT sessions_pkey PRIMARY KEY (name);

-- Identity constraints for the series registry and reference tables.
--
-- These are small registries, not timeseries data: a btree key here costs
-- almost nothing. This is unrelated to the deliberate decision NOT to put a
-- unique constraint on series timestamps, where BRIN is used precisely
-- because a btree would be prohibitive at millions of rows per series.
--
-- Without these, duplicate registry rows were possible and the add_* methods
-- advertised "already exists" errors that no constraint could raise.
ALTER TABLE meta.series ADD CONSTRAINT series_pkey PRIMARY KEY (table_id);
ALTER TABLE meta.series ADD CONSTRAINT series_schema_table_key UNIQUE (db_schema, table_name);
ALTER TABLE meta.currencies ADD CONSTRAINT currencies_pkey PRIMARY KEY (code);
ALTER TABLE meta.security_types ADD CONSTRAINT security_types_pkey PRIMARY KEY (code);
ALTER TABLE meta.timezones ADD CONSTRAINT timezones_pkey PRIMARY KEY (iana_name);

CREATE INDEX idx_event_log_series_timestamp ON log.event_log USING btree (series_name, "timestamp" DESC);

CREATE INDEX idx_event_log_timestamp ON log.event_log USING btree ("timestamp" DESC);

CREATE INDEX idx_event_log_event_type ON log.event_log USING btree (event_type);

CREATE INDEX idx_series_create_timestamp_desc ON meta.series USING btree (create_timestamp DESC NULLS LAST);

CREATE INDEX idx_series_db_schema ON meta.series USING btree (db_schema) WHERE ((db_schema IS NOT NULL) AND ((db_schema)::text <> ''::text));

CREATE INDEX idx_series_exchange_pattern ON meta.series USING btree (lower((exchange)::text) text_pattern_ops) WHERE ((exchange IS NOT NULL) AND ((exchange)::text <> ''::text));

CREATE INDEX idx_series_frequency_pattern ON meta.series USING btree (lower((frequency)::text) text_pattern_ops) WHERE ((frequency IS NOT NULL) AND ((frequency)::text <> ''::text));

CREATE INDEX idx_series_symbol_exchange ON meta.series USING btree (lower((symbol)::text), lower((exchange)::text)) WHERE ((symbol IS NOT NULL) AND ((symbol)::text <> ''::text) AND (exchange IS NOT NULL) AND ((exchange)::text <> ''::text));

CREATE INDEX idx_series_symbol_pattern ON meta.series USING btree (lower((symbol)::text) text_pattern_ops) WHERE ((symbol IS NOT NULL) AND ((symbol)::text <> ''::text));

CREATE INDEX idx_series_symbol_trgm ON meta.series USING gin (symbol public.gin_trgm_ops) WHERE ((symbol IS NOT NULL) AND ((symbol)::text <> ''::text));

CREATE INDEX idx_series_table_name_trgm ON meta.series USING gin (table_name public.gin_trgm_ops) WHERE ((table_name IS NOT NULL) AND ((table_name)::text <> ''::text));

CREATE INDEX idx_series_type_pattern ON meta.series USING btree (lower((type)::text) text_pattern_ops) WHERE ((type IS NOT NULL) AND ((type)::text <> ''::text));