Function db_sqlite3_delete_columns

db/db_sqlite3.c:621–666

}

static bool db_sqlite3_delete_columns(struct db *db,
				      const char *tablename,
				      const char **colnames, size_t num_cols)
{
	char **parts;
	const char **coldefs, **oldcolnames;
	size_t colnames_found = 0;

	parts = prepare_table_manip(NULL, db, tablename);
	if (!parts)
		return false;

	tal_steal(tmpctx, parts);
	coldefs = tal_arr(tmpctx, const char *, 0);
	oldcolnames = tal_arr(tmpctx, const char *, 0);

	for (size_t i = 0; parts[i]; i++) {
		/* columnname DETAILS */
		size_t after_name;
		const char *colname = find_column_name(tmpctx, parts[i],
						       &after_name);

		/* Things like "PRIMARY KEY xxx" must be copied verbatim */
		if (!colname) {
			tal_arr_expand(&coldefs, parts[i]);
			continue;
		}

		/* Don't mention columns we're supposed to delete */
		if (colname_to_delete(colnames, num_cols, colname)) {
			colnames_found++;
			continue;
		}

		/* Keep it as is! */
		tal_arr_expand(&coldefs, parts[i]);
		tal_arr_expand(&oldcolnames, colname);
	}

	if (colnames_found != num_cols) {
		db->error = tal_fmt(db, "Only %zu/%zu columns found",
				    colnames_found, num_cols);
		return false;
	}
	return complete_table_manip(db, tablename, coldefs, oldcolnames);
}

struct db_config db_sqlite3_config = {
	.name = "sqlite3",