Align and comment code

20230125152306_languages.up.sql

@@ -1,10 +1,13 @@
 BEGIN;
 
 CREATE TABLE languages (
+--  name         type       constraints
     id           BIGSERIAL  PRIMARY KEY,
     code         VARCHAR(2) NOT NULL,
     english_name VARCHAR    NOT NULL,
     self_name    VARCHAR    NOT NULL,
+
+--  CONSTRAINT name                      CHECK (condition)
     CONSTRAINT code_is_language_code     CHECK (is_language_code(code)),
     CONSTRAINT english_name_is_sane_text CHECK (is_sane_text(english_name)),
     CONSTRAINT self_name_is_sane_text    CHECK (is_sane_text(self_name))

20230204224830_examples.up.sql

@@ -1,15 +1,19 @@
 BEGIN;
 
 CREATE TABLE examples (
+--  name type      constraints
     id   BIGSERIAL PRIMARY KEY
 );
 
 CREATE TABLE example_texts (
+--  name        type      constraints
     id          BIGSERIAL PRIMARY KEY,
     example_id  BIGINT    NOT NULL REFERENCES examples (id),
     language_id BIGINT    NOT NULL REFERENCES languages (id),
     index       BIGINT    NOT NULL,
     value       TEXT      NOT NULL,
+
+--  CONSTRAINT name                  CHECK (condition)
     CONSTRAINT index_is_not_negative CHECK (index >= 0),
     CONSTRAINT value_is_sane_text    CHECK (is_sane_text(value))
 );

20230211045705_words.up.sql

@@ -1,16 +1,22 @@
 BEGIN;
 
 CREATE TABLE words (
+--  name         type      constraints
     id           BIGSERIAL PRIMARY KEY,
     language_id  BIGINT    NOT NULL REFERENCES languages (id),
     primary_form VARCHAR   NOT NULL,
+
+--  CONSTRAINT name                      CHECK (condition)
     CONSTRAINT primary_form_is_sane_text CHECK (is_sane_text(primary_form))
 );
 
 CREATE TABLE word_forms (
+--  name    type      constraints
     id      BIGSERIAL PRIMARY KEY,
     word_id BIGINT    NOT NULL REFERENCES words (id),
     value   VARCHAR   NOT NULL,
+
+--  CONSTRAINT name               CHECK (condition)
     CONSTRAINT value_is_sane_text CHECK (is_sane_text(value))
 );