scan: forbid interval conditions

As for Tarantool 3.0 and older, datetime intervals are
not comparable [1]. They are also don't supported in indexes. This patch
explicitly forbids to use them in conditions.
1. tarantool/tarantool#7659

Closes #373

CHANGELOG.md

@@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## Unreleased
 
+### Changed
+* Explicitly forbid datetime interval conditions (#373).
+
 ### Fixed
 * Working with datetime conditions in case of non-indexed fields or
   non-iterating indexes (#373).

crud/common/utils.lua

@@ -1,10 +1,13 @@
+local bit = require('bit')
 local errors = require('errors')
+local fiber = require('fiber')
 local ffi = require('ffi')
-local vshard = require('vshard')
 local fun = require('fun')
-local bit = require('bit')
+local vshard = require('vshard')
 local log = require('log')
 
+local datetime_supported, datetime = pcall(require, 'datetime')
+
 local is_cartridge, cartridge = pcall(require, 'cartridge')
 local is_cartridge_hotreload, cartridge_hotreload = pcall(require, 'cartridge.hotreload')
 
@@ -23,7 +26,6 @@ local NotInitializedError = errors.new_class('NotInitialized')
 local StorageInfoError = errors.new_class('StorageInfoError')
 local VshardRouterError = errors.new_class('VshardRouterError', {capture_stack = false})
 local UtilsInternalError = errors.new_class('UtilsInternalError', {capture_stack = false})
-local fiber = require('fiber')
 
 local utils = {}
 
@@ -1335,6 +1337,21 @@ function utils.is_cartridge_hotreload_supported()
     return true, cartridge_hotreload
 end
 
+local interval_supported = datetime_supported and (datetime.interval ~= nil)
+
+if interval_supported then
+    -- https://github.com/tarantool/tarantool/blob/0510ffa07afd84a70c9c6f1a4c28aacd73a393d6/src/lua/datetime.lua#L175-179
+    local interval_t = ffi.typeof('struct interval')
+
+    utils.is_interval = function(o)
+        return ffi.istype(interval_t, o)
+    end
+else
+    utils.is_interval = function()
+        return false
+    end
+end
+
 for k, v in pairs(require('crud.common.vshard_utils')) do
     utils[k] = v
 end

crud/compare/filters.lua

@@ -167,10 +167,16 @@ local function format_value(value)
         return ("%q"):format(value)
     elseif datetime_supported and datetime.is_datetime(value) then
         return ("%q"):format(value:format())
+    elseif utils.is_interval(value) then
+        -- As for Tarantool 3.0 and older, datetime intervals
+        -- are not comparable. It's better to explicitly forbid them
+        -- for now.
+        -- https://github.com/tarantool/tarantool/issues/7659
+        GenFiltersError:assert(false, ('datetime interval conditions are not supported'))
     elseif type(value) == 'cdata' then
         return tostring(value)
     end
-    assert(false, ('Unexpected value %s (type %s)'):format(value, type(value)))
+    GenFiltersError:assert(false, ('Unexpected value %s (type %s)'):format(value, type(value)))
 end
 
 local PARSE_ARGS_TEMPLATE = 'local tuple = ...'

test/entrypoint/srv_select/storage_init.lua

@@ -1,4 +1,4 @@
-local datetime_supported, _ = pcall(require, 'datetime')
+local datetime_supported, datetime = pcall(require, 'datetime')
 local decimal_supported, _ = pcall(require, 'decimal')
 
 local crud_utils = require('crud.common.utils')
@@ -422,4 +422,30 @@ return function()
             if_not_exists = true,
         })
     end
+
+    local interval_supported = datetime_supported and (datetime.interval ~= nil)
+    if interval_supported then
+        -- Interval is non-indexable.
+        local interval_space = box.schema.space.create('interval', {
+            if_not_exists = true,
+            engine = engine,
+        })
+
+        interval_space:format({
+            {name = 'id', type = 'unsigned'},
+            {name = 'bucket_id', type = 'unsigned'},
+            {name = 'interval_field', type = 'interval'},
+        })
+
+        interval_space:create_index('id_index', {
+            parts = { 'id' },
+            if_not_exists = true,
+        })
+
+        interval_space:create_index('bucket_id', {
+            parts = { 'bucket_id' },
+            unique = false,
+            if_not_exists = true,
+        })
+    end
 end

test/helper.lua

@@ -968,6 +968,12 @@ function helpers.skip_datetime_unsupported()
     t.skip_if(not module_available, 'datetime is not supported')
 end
 
+function helpers.skip_interval_unsupported()
+    local datetime_supported, datetime = pcall(require, 'datetime')
+    local interval_supported = datetime_supported and (datetime.interval ~= nil)
+    t.skip_if(not interval_supported, 'interval is not supported')
+end
+
 function helpers.merge_tables(t1, t2, ...)
     if t2 == nil then
         return t1

test/integration/count_test.lua

@@ -873,10 +873,7 @@ local read_impl = function(cg, space, conditions, opts)
     opts = table.deepcopy(opts) or {}
     opts.mode = 'write'
 
-    local resp, err = cg.cluster.main_server:call('crud.count', {space, conditions, opts})
-    t.assert_equals(err, nil)
-
-    return resp
+    return cg.cluster.main_server:call('crud.count', {space, conditions, opts})
 end
 
 pgroup.test_gh_418_count_with_secondary_noneq_index_condition = function(g)
@@ -885,7 +882,8 @@ end
 
 local gh_373_types_cases = helpers.merge_tables(
     read_scenario.gh_373_read_with_decimal_condition_cases,
-    read_scenario.gh_373_read_with_datetime_condition_cases
+    read_scenario.gh_373_read_with_datetime_condition_cases,
+    read_scenario.gh_373_read_with_interval_condition_cases
 )
 
 for case_name_template, case in pairs(gh_373_types_cases) do

test/integration/pairs_readview_test.lua

@@ -911,7 +911,8 @@ end
 
 local gh_373_types_cases = helpers.merge_tables(
     read_scenario.gh_373_read_with_decimal_condition_cases,
-    read_scenario.gh_373_read_with_datetime_condition_cases
+    read_scenario.gh_373_read_with_datetime_condition_cases,
+    read_scenario.gh_373_read_with_interval_condition_cases
 )
 
 for case_name_template, case in pairs(gh_373_types_cases) do

test/integration/pairs_test.lua

@@ -919,7 +919,8 @@ end
 
 local gh_373_types_cases = helpers.merge_tables(
     read_scenario.gh_373_read_with_decimal_condition_cases,
-    read_scenario.gh_373_read_with_datetime_condition_cases
+    read_scenario.gh_373_read_with_datetime_condition_cases,
+    read_scenario.gh_373_read_with_interval_condition_cases
 )
 
 for case_name_template, case in pairs(gh_373_types_cases) do

test/integration/read_scenario.lua

@@ -548,6 +548,34 @@ for space_kind, space_option in pairs(datetime_condition_space_options) do
 end
 
 
+local gh_373_read_with_interval_condition_cases = {
+    ['gh_373_%s_with_interval_single_condition_is_forbidden'] = function(cg, read)
+        helpers.skip_interval_unsupported()
+
+        local _, err = read(cg,
+            'interval',
+            {{'>=', 'interval_field', datetime.interval.new{}}}
+        )
+        t.assert_not_equals(err, nil)
+
+        local err_msg = err.err or tostring(err)
+        t.assert_str_contains(err_msg, "datetime interval conditions are not supported")
+    end,
+    ['gh_373_%s_with_interval_second_condition_is_forbidden'] = function(cg, read)
+        helpers.skip_interval_unsupported()
+
+        local _, err = read(cg,
+            'interval',
+            {{'>=', 'id', 1}, {'>=', 'interval_field', datetime.interval.new{}}}
+        )
+        t.assert_not_equals(err, nil)
+
+        local err_msg = err.err or tostring(err)
+        t.assert_str_contains(err_msg, "datetime interval conditions are not supported")
+    end,
+}
+
+
 local function before_merger_process_storage_error(cg)
     helpers.call_on_storages(cg.cluster, function(server)
         server:exec(function()
@@ -631,6 +659,7 @@ return {
     gh_418_read_with_secondary_noneq_index_condition = gh_418_read_with_secondary_noneq_index_condition,
     gh_373_read_with_decimal_condition_cases = gh_373_read_with_decimal_condition_cases,
     gh_373_read_with_datetime_condition_cases = gh_373_read_with_datetime_condition_cases,
+    gh_373_read_with_interval_condition_cases = gh_373_read_with_interval_condition_cases,
     before_merger_process_storage_error = before_merger_process_storage_error,
     merger_process_storage_error = merger_process_storage_error,
     after_merger_process_storage_error = after_merger_process_storage_error,

test/integration/select_readview_test.lua

@@ -2509,7 +2509,8 @@ end
 
 local gh_373_types_cases = helpers.merge_tables(
     read_scenario.gh_373_read_with_decimal_condition_cases,
-    read_scenario.gh_373_read_with_datetime_condition_cases
+    read_scenario.gh_373_read_with_datetime_condition_cases,
+    read_scenario.gh_373_read_with_interval_condition_cases
 )
 
 for case_name_template, case in pairs(gh_373_types_cases) do

test/integration/select_test.lua

@@ -2287,7 +2287,8 @@ end
 
 local gh_373_types_cases = helpers.merge_tables(
     read_scenario.gh_373_read_with_decimal_condition_cases,
-    read_scenario.gh_373_read_with_datetime_condition_cases
+    read_scenario.gh_373_read_with_datetime_condition_cases,
+    read_scenario.gh_373_read_with_interval_condition_cases
 )
 
 for case_name_template, case in pairs(gh_373_types_cases) do