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-- Production tables
create table nflow_workflow (
id int primary key generated always as identity,
status varchar(32) not null check (status in ('created', 'executing', 'inProgress', 'finished', 'manual')),
type varchar(64) not null,
priority smallint not null default 0,
parent_workflow_id integer default null,
parent_action_id integer default null,
business_key varchar(64),
external_id varchar(64) not null,
state varchar(64) not null,
state_text varchar(128),
next_activation timestamp(3),
external_next_activation timestamp(3),
executor_id int,
retries int not null default 0,
created timestamp(3) not null default current_timestamp,
modified timestamp(3) not null default current_timestamp,
started timestamp(3),
executor_group varchar(64) not null,
workflow_signal int,
constraint nflow_workflow_uniq unique (type, external_id, executor_group)
);
create or replace trigger nflow_workflow_update_modified
before update on nflow_workflow
referencing new as n
for each row
set modified = current timestamp;
create index nflow_workflow_polling on nflow_workflow(next_activation, status, executor_id, executor_group);
create index idx_workflow_parent on nflow_workflow(parent_workflow_id);
create table nflow_workflow_action (
id int primary key generated always as identity,
workflow_id int not null,
executor_id int not null default -1,
type varchar(32) not null check (type in ('stateExecution', 'stateExecutionFailed', 'recovery', 'externalChange')),
state varchar(64) not null,
state_text varchar(128),
retry_no int not null,
execution_start timestamp(3) not null,
execution_end timestamp(3) not null,
constraint fk_action_workflow_id foreign key (workflow_id) references nflow_workflow(id)
);
create index nflow_workflow_action_workflow on nflow_workflow_action(workflow_id);
create table nflow_workflow_state (
workflow_id int not null,
action_id int not null,
state_key varchar(64) not null,
state_value varchar(10240) not null,
constraint pk_workflow_state primary key (workflow_id, action_id, state_key),
constraint fk_state_workflow_id foreign key (workflow_id) references nflow_workflow(id)
);
create table nflow_executor (
id int primary key generated always as identity,
host varchar(253) not null,
pid int not null,
executor_group varchar(64),
started timestamp(3) not null default current_timestamp,
active timestamp(3) not null,
expires timestamp(3) not null,
stopped timestamp(3)
);
create table nflow_workflow_definition (
type varchar(64) not null,
definition_sha1 varchar(40) not null,
definition varchar(10240) not null,
created timestamp(3) not null default current_timestamp,
modified timestamp(3) not null default current_timestamp,
modified_by int not null,
executor_group varchar(64) not null,
constraint pk_workflow_definition primary key (type, executor_group)
);
create or replace trigger nflow_workflow_definition_update_modified
before update on nflow_workflow_definition
referencing new as n
for each row
set modified = current timestamp;
-- Archive tables
-- - no default values
-- - no triggers
-- - no auto increments
-- - same indexes and constraints as production tables
-- - remove recursive foreign keys
create table nflow_archive_workflow (
id int not null primary key,
status varchar(32) not null,
type varchar(64) not null,
priority smallint null,
parent_workflow_id integer,
parent_action_id integer,
business_key varchar(64),
external_id varchar(64) not null,
state varchar(64) not null,
state_text varchar(128),
next_activation timestamp(3),
external_next_activation timestamp(3),
executor_id int,
retries int not null default 0,
created timestamp(3) not null,
modified timestamp(3) not null,
started timestamp(3),
executor_group varchar(64) not null,
workflow_signal int,
constraint nflow_archive_workflow_uniq unique (type, external_id, executor_group)
);
create index idx_workflow_archive_parent on nflow_archive_workflow(parent_workflow_id);
create table nflow_archive_workflow_action (
id int not null primary key,
workflow_id int not null,
executor_id int not null,
type varchar(32) not null,
state varchar(64) not null,
state_text varchar(128),
retry_no int not null,
execution_start timestamp(3) not null,
execution_end timestamp(3) not null,
constraint fk_arch_action_wf_id foreign key (workflow_id) references nflow_archive_workflow(id)
);
create index nflow_archive_workflow_action_workflow on nflow_archive_workflow_action(workflow_id);
create table nflow_archive_workflow_state (
workflow_id int not null,
action_id int not null,
state_key varchar(64) not null,
state_value varchar(10240) not null,
constraint pk_arch_workflow_state primary key (workflow_id, action_id, state_key),
constraint fk_arch_state_wf_id foreign key (workflow_id) references nflow_archive_workflow(id)
);
