[MIGRATION] New schema migration SQL script

devops/postgres/upgrade/0.0.5/schema.sql

+
+-- TODO typename -> type_id
+CREATE TABLE public.contexts (
+    id        SERIAL,
+    hash_id   CHARACTER varying(66) DEFAULT ''::character varying NOT NULL,
+    typename  INTEGER NOT NULL,
+    user_id   INTEGER NOT NULL,
+    parent_id INTEGER REFERENCES public.contexts(id) ON DELETE CASCADE ,
+    name      CHARACTER varying(255) DEFAULT ''::character varying NOT NULL,
+    date      TIMESTAMP with time zone DEFAULT now() NOT NULL,
+    hyperdata jsonb DEFAULT '{}'::jsonb NOT NULL,
+    search tsvector,
+    PRIMARY KEY (id),
+    FOREIGN KEY (user_id)  REFERENCES public.auth_user(id) ON DELETE CASCADE
+);
+ALTER TABLE public.contexts OWNER TO gargantua;
+
+
+
+-- To attach contexts to a Corpus
+CREATE TABLE public.nodes_contexts (
+    node_id    INTEGER NOT NULL REFERENCES public.nodes(id)    ON DELETE CASCADE,
+    context_id INTEGER NOT NULL REFERENCES public.contexts(id) ON DELETE CASCADE,
+    score    REAL    ,
+    category INTEGER ,
+    PRIMARY KEY (node_id, context_id)
+);
+ALTER TABLE public.nodes_contexts OWNER TO gargantua;
+
+ ---------------------------------------------------------------
+CREATE TABLE public.context_node_ngrams (
+    context_id    INTEGER NOT NULL REFERENCES public.contexts (id) ON DELETE CASCADE,
+    node_id       INTEGER NOT NULL REFERENCES public.nodes    (id) ON DELETE CASCADE,
+    ngrams_id     INTEGER NOT NULL REFERENCES public.ngrams   (id) ON DELETE CASCADE,
+    ngrams_type   INTEGER  ,
+    weight double precision,
+    PRIMARY KEY (context_id, node_id, ngrams_id, ngrams_type)
+  );
+
+
+ALTER TABLE public.context_node_ngrams OWNER TO gargantua;
+
+CREATE TABLE public.context_node_ngrams2 (
+    context_id      INTEGER NOT NULL REFERENCES public.contexts  (id)       ON DELETE CASCADE,
+    nodengrams_id   INTEGER NOT NULL REFERENCES public.node_ngrams  (id) ON DELETE CASCADE,
+    weight double   precision,
+    PRIMARY KEY (context_id, nodengrams_id)
+);
+ALTER TABLE public.context_node_ngrams2 OWNER TO gargantua;
+
+
+
+CREATE INDEX        ON public.contexts USING gin (hyperdata);
+CREATE INDEX        ON public.contexts USING btree (user_id, typename, parent_id);
+CREATE INDEX        ON public.contexts USING btree (id, typename, date ASC);
+CREATE INDEX        ON public.contexts USING btree (id, typename, date DESC);
+CREATE INDEX        ON public.contexts USING btree (typename, id);
+CREATE UNIQUE INDEX ON public.contexts USING btree (hash_id);
+
+
+-- To make the links between Corpus Node and its contexts
+CREATE UNIQUE INDEX ON public.nodes_contexts  USING btree (node_id, context_id);
+CREATE INDEX        ON public.nodes_contexts  USING btree (node_id, context_id, category);
+
+
+------------------------------------------------------------------------
+CREATE UNIQUE INDEX ON public.context_node_ngrams USING btree (context_id, node_id, ngrams_id, ngrams_type);
+CREATE        INDEX ON public.context_node_ngrams USING btree (context_id,  node_id);
+CREATE        INDEX ON public.context_node_ngrams USING btree (ngrams_id, node_id);
+CREATE        INDEX ON public.context_node_ngrams USING btree (ngrams_type);
+
+CREATE INDEX ON public.context_node_ngrams2 USING btree (context_id);
+CREATE INDEX ON public.context_node_ngrams2 USING btree (nodengrams_id);
+CREATE INDEX ON public.context_node_ngrams2 USING btree (context_id, nodengrams_id);
+
+
+DELETE TABLE public.node_nodengrams_nodengrams